Kathryn writes:
"Dear Esteemed and Learned List Members,
I was fooling around with a wall wart that is listed as 24V and 500mA,
and had it hooked up in series with my radioshack multimeter. It tested
as 30.6V, and after I switched it to mA, the meter failed. Now it just
reads micro volts and won't read anything else. Dang! Maybe I had it on
micro amps instead of milliamps, and would that break it?
I need another multimeter! But I don't want to just turn around and
break this one too.
Thanks,"
Did you disconnect power while switching your multimeter?
A safe and simple method of measuring amperage in simple circuits like
this is to place a ten watt resister of about a ten ohm resistance in
series and then measure the voltage across the resister, across the load
(your colloidal silver making device), and then across both the resister
and the load together. At that point you can determine the power
consumption by the load by simple math and ohms law.
It won't be perfectly accurate, but close enough and there is no danger
of burning out your meter.
Levi Philos
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